import threading
import time


def sign():
    """
    唱个歌5秒
    :return:
    """
    for i in range(5):
        print("唱歌ing")
        time.sleep(1)


def dance():
    """
    唱个舞5秒
    :return:
    """
    for i in range(5):
        print("跳舞ing")
        time.sleep(1)


def main():
    sign_thread = threading.Thread(target=sign)
    dance_thread = threading.Thread(target=dance)
    sign_thread.start()
    dance_thread.start()


if __name__ == '__main__':
    main()
